Eloub-cool-er



H. B. ALLIS.

Flour Cooler.

No. 22,006. Patented Nov. 9, 1858.

UNITED STATES PATENT OFFICE,

HORACE B. ALLIS, OE LITTLE ROCK, ARKANSAS.

FLOUR-COOLER.

Specification of Letters Patent No.

To all whom it may concern:

Be it known that I, HORACE B. ALLis, of Little Rock, in the county of Pulaski and State of Arkansas, have invented an Improvement in Flour and Meal Coolers, the construction and operation of which I have described in the following specification and illustrated in the accompanying drawings with sufficient clearness to enable competent and skilful workmen in the arts to which it pertains or is most nearly allied to make and use my invention.

My said invention consists in the combination with a polygonal, cylindrical or conical cooler hung upon a nearly horizontal shaft, of radial or nearly radial screens for breaking up and separating the adhering` particles of meal or flour, and thus facilitating the cooling action as hereinafter more fully set forth.

In the acompanying drawings, Figure 1 is a longitudinal sectional elevation of my improved cooler inclosed in the case, and ready for operation. Fig. 2 is an end view. F ig. 8 is a sectional elevation of the cooler alone, without its attachments.

A is the case in which the cooler is placed, which may be made more or less open as required by th-e work to be done or the state of the weather for the time being.

B is the main shaft of the cooler. This shaft is surrounded by a hollow cylinder or polygon C, which is open at the end as shown in the drawings, and attached to the shaft by the arms D. This cooler is placed in a nearly horizontal position, and the meal is introduced into it by means of the spout E, this end of the cooler being a trifle higher than the other to cause the meal to pass through the cooler to the delivering spout F. There are ribs g and z, attached to the shaft B, and to the shell of the cooler, Iand to these ribs and to the arms D are attached strips of wire screening I, which as the meal falls upon them, separate the particles, and also have a tendency to spread it toward the center of the cooler. This cooler is placed in such a position as to receive the 22,006, dated November 9, 1858.

meal from the elevators, before it reaches the bolt for the reason that the meal will bolt better when cool, and also that the wire screen prepares the adhering particles for bolting by separating them from each other.

I am aware that coolers have been constructed with radial ribs to throw the meal toward the shaft of the cooler, delivering it in sheets from their inner edges for the evident purpose of bringing the meal more in contact with the air and thereby facilitating the cooling process. This however has very little, if any effect, in the way of breaking up the clusters of meal which adhere, and does not distribute it through the air in the cooler as is done by my invention. ln my cooler the flour is by the action of the screens I distributed through the air in the cooler instead of falling in an unbroken sheet as is the case with an imperforated radial ledge. The combination of the small ribs or ledges g with the screens also very considerably facilitates this result, as the meal as it falls down the side of the cooler rst brought in contact with, and stopped by the ribs g, which serve to check the advance of the body of meal till the further rotation of the cooler brings the parts in such a position that the meal will be more easily scattered toward the center of the cooler.

The particular improvement which constitutes my said invention, and which I claim as having been originally and first invented by me is- The combination with a cooler hung so as to revolve upon a nearly horizontal shaft as described, of nearly radial screens as stated and shown, and also the combination therewith as an auxiliary to accomplish the desired result, of the solid flanges g for checking t-he motion of the meal till the screens have arrived at the proper angle to properly distribute the meal as hereinabove set forth.

HORACE B. ALLIS. eWitnesses A. J. SMITH, I. IV. WILLIAMS. 

